Zip 94598 (Walnut Creek, CA) Climate

Walnut Creek, CA is known for its warm and mild climate. The city typically enjoys an average of 300 sunny days each year, making it an ideal place to enjoy the outdoors. Winters are generally mild, with only occasional cold spells dipping into the low 40s at night. Summers in Walnut Creek can become quite hot during the day, with temperatures occasionally reaching the mid-90s. Rainfall varies throughout the year, but is generally heaviest from November through April.

Walnut Creek (zip 94598), California gets 18 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Walnut Creek (zip 94598) averages 0 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 260 sunny days per year in Walnut Creek (zip 94598). The US average is 205 sunny days.

Walnut Creek (zip 94598) gets some kind of precipitation, on average, 61 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.

Weather Highlights

Summer High: the July high is around 88 degrees
Winter Low: the January low is 39
Rain: averages 18 inches of rain a year
Snow: averages 0 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for the 94598 zip code is 8.5 (10=best), which means it is more comfortable than most places in California.

9.2 Summer - 7.3 Winter

June, September and May are the most pleasant months in the 94598 zip code, while January and December are the least comfortable months.

Climate	Walnut Creek, California	United States
	Unlock	38.1 in.
	0.0 in.	Unlock
	Unlock	106.2 days
	260 days	Unlock
	87.9°	85.8°
	Unlock	21.7°
	8.5	Unlock
	Unlock	4.3
	197 ft.	Unlock

Climate

YOU SHOULD KNOW

Many people confuse weather and climate but they are different. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time.

Weather is how the atmosphere is behaving and its effects upon life and human activities. Weather can change from minute-to-minute. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure.

Climate is the description of the long-term pattern of weather in a place. Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time.

July is the hottest month for the 94598 zip code with an average high temperature of 87.9°, which ranks it as about average compared to other places in California. In the 94598 zip code, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for the 94598 zip code are May, October and June.

In the 94598 zip code, there are 41.9 days annually when the high temperature is over 90°, which is about average compared to other places in California.

January has the coldest nighttime temperatures for the 94598 zip code with an average of 38.8°. This is warmer than most places in California.

In the 94598 zip code, there are 11.7 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in California.

In the 94598 zip code, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in California.

Humidity is low in the 94598 zip code, and some people might find the dryness to be uncomfortable. Days with noticeable humidity are rare throughout the year. A very dry climate can lead to cracked, itchy skin and dry eyes.

February is the wettest month in the 94598 zip code with 3.6 inches of rain, and the driest month is July with 0.0 inches. The wettest season is Spring with 59% of yearly precipitation and 1% occurs in Autumn, which is the driest season. The annual rainfall of 18.3 inches in the 94598 zip code means that it is about average compared to other places in California.

December is the rainiest month in the 94598 zip code with 11.0 days of rain, and July is the driest month with only 0.1 rainy days. There are 61.2 rainy days annually in the 94598 zip code, which is about average compared to other places in California. The rainiest season is Spring when it rains 53% of the time and the driest is Autumn with only a 1% chance of a rainy day.

There is rarely any recorded snowfall in the 94598 zip code, ranking it as one of the least snowy places in California. Any measurable snowfall is a rare occurance in the 94598 zip code.

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